The boy was injured and is in critical condition, while Rosa, who acted as a human shield, was killed. Leani was unharmed.

"When I fell in the grass, I put my hands over my head," said Leani. "When I came back up, I saw my brother and my mom."

After undergoing surgery, Jadiyn is still reportedly in bad shape, but his condition is stable, and his prognosis is good.

McHugh was arrested and faces charges that include homicide by vehicle, involuntary manslaughter and aggravated assault while driving under the influence. Witnesses detained him until police arrived.

"I want to thank the people who came to support my mom and the police officers that caught the man that hurt my mom," Leani said.

A GoFundMe page was set up on June 11 to help the Rojas family alleviate memorial costs. As of the evening of June 12, it has raised more than $2,600 of its $8,500 goal, and more than 1,000 people have shared the story.

"My heart is so heavy for your family," one donor wrote on the page. "This was such a senseless tragedy for this beautiful woman and her children. I pray you all find comfort knowing you have an angel to watch over you. God bless you all."

A number of people, from friends to strangers, offered their thoughts and prayers and called Rosa a hero.

"We [didn't] know you but was driving behind the man who did this and witnessed it," another donor wrote. "We are [devastated] and sending prayers to you and your family."